%\def\hellow{
%	\textcolor{red}{HELLO!}
%}
%
%% with receiving param
%\def\hellow2#1{
%	\textcolor{red}{begin #1 end}
%}
%
%% alternative way of starting ending a command
%\def\hellow3#1{
%	{\bf#1}
%	\begin{bf}#1\end{bf}
%}


% show TODOs
%\ifpdf
%	\def\TODO#1{
%		\textcolor{red}{#1}
%		%\addcontentsline{toc}{subsection}{To Do}
%	}
%\else
%	\def\TODO#1{
%		\textbf{TODO:} #1
%	}
%\fi

% hide TODOs
%\def\TODO#1{}

\newcounter{todonum}
\setcounter{todonum}{1}

\newcounter{todolnum}
\setcounter{todolnum}{1}



% TO DO!

\def\TODO#1{}

%\def\TODO#1{
%		\textcolor{red}{
%				\arabic{todonum} TODO: #1
%		}
%		\addtocounter{todonum}{1}
%}

 
%% TO DO LATER...

\def\TODOL#1{}

%\def\TODOL#1{
%		\textcolor{green}{
%				\arabic{todolnum}: #1
%		}
%		\addtocounter{todolnum}{1}
%}


% grades!
\def\GdE{\includegraphics[width=0.35cm]{gfx/grade1.png}}
\def\GdD{\includegraphics[width=0.35cm]{gfx/grade2.png}}
\def\GdC{\includegraphics[width=0.35cm]{gfx/grade3.png}}
\def\GdB{\includegraphics[width=0.35cm]{gfx/grade4.png}}
\def\GdA{\includegraphics[width=0.35cm]{gfx/grade5.png}}


%\def\sourcetabsize{4}
%\newenvironment{sourcestyle}{\begin{scriptsize}}{\end{scriptsize}}
%\def\sourceinput#1{\par\begin{sourcestyle}\verbatimtabinput[\sourcetabsize]{#1}\end{sourcestyle}\par}